Fix: Windows 10 application blocked by Java Security

Java always keeps updating itself to improve several security features and ensure that its services remain top-notch. It surely isn’t as popular and in use as it used to be. However, the Java programming language is still found in abundance and used heavily in various domains. 

There are various drawbacks of Java and one of the chief ones is that it cannot automatically update, unlike other programs. So, the user needs to install and run the updates, leaving vulnerable software unpatched for a long time.

Also, it won’t send you an alert when an updated version has arrived. Most people won’t even bother to check if there is an update or not. 

These things along with a couple of other reasons might be why your Java program keeps throwing security errors. Keep reading to find out how to resolve this Java security error!

Windows 10 application blocked by Java Security

Java Security Alerts: “Application Blocked by Java Security” error

Oracle has included a security check within the Java program since launching Java 7, to assist with security issues. Moreover, it will send you an alert whenever such an app is installed that is not signed by a trusted authority or doesn’t have certain attributes.  This is to ensure Java’s security but there can be some faulty cases as well.

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It is due to this reason that you might be getting the alert “Application Blocked by Java Security”. Honestly, it can be quite annoying because you might not be able to use self-designed software or custom ones. 

How Do I Turn Off Java Security Warnings: Step-By-Step Guide

If you have been witnessing a lot of Java security alerts, then working on your computer can become a burden for you. There are a couple of things you can do to get rid of them. Find a detailed overview of these points below:

Solution 1: Check Your Java Security Settings

Sometimes, you might get the “application blocked by java security” error even when you install Java or a Java update. In that case, the application or program might be getting blocked by security settings of Java. Here are the steps you need to follow to check out the Java Security settings.

Step 1. Go to the Start menu and type “Control Panel” in the search box. Then, hit Enter.

Step 2. Click on the “Control Panel” option that comes up in the search results. Now, you will be able to view all the list of programs.

Click on the “Control Panel” option

Step 3. Go to the “View by” section and click on “Category” and then on “Small icons”

Step 4. Now, find “Java” and click on it.

Now, find “Java” and click on it.

Step 5. The Java Control Panel will open up. You need to click on the “Security” tab.

click on the “Security” tab

Step 6. This tab comes with two types of security settings or security levels, namely, “High” and “Very High”. Change it to “High” and “Very High” as per your wish. 

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Step 7. Now, in the “Exception Site List” option, add all the sites that you don’t want to block. 

Step 8. Click on the “Edit Site List” button located on the right side of your Window.

Click on the “Edit Site List” button

Step 9. Click on the “Add” button from the new window and paste all the links that you want to.

Click on the “Add” button from the new window

Note: Make sure to use the full URL addresses with http:// or https://, otherwise this step might not work quite right. Also, remember that it will only unblock the websites blocked by java security, not the applications giving this error.

Step 10. You can also allow access if you enter the domain names and URL in the Location field.

Step 11. Once done, click on “OK” and that’s it.

Solution 2: Update the Java Program

If you can’t really figure out why the “application blocked by Java security” alert keeps popping up on your computer, then try updating the Java program you have. And if updating your version of Java doesn’t help, then, update everything else including your browser, applications, programs, and everything else that might have triggered the security alert.

Step 1. Go to the official website of Java.

Official Java website

Step 2. Find the version of Java that is compatible with your system. Download the updated version and install it. Check if the issue has been resolved or not.

Download the updated version and install it

Step 3. Else, try updating your browser in use and the application too. Think of other things that might be triggering the alert and update them as well.

Solution 3: Install a new Certificate

If none of the above methods work, then follow the steps given below:

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Step 1. Inform the vendor about the issue and ask for a new certificate.

Step 2. Once you receive it, install the new certificate on your computer. The application should no longer be blocked by Java Security.

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Frequently Asked Questions

How do I fix a Java application blocked by security?

There are several ways to do so and we have mentioned the chief ones in the above blog. We hope you’ll learn how to solve this error and successfully eliminate the “Application Blocked by Java Security” error.

What is meant by “application blocked by Java security?

This is an error shown by Java security and it means that a certain application has been blocked by Java’s security settings. The “Application Blocked by Java” error could arise due to the program not having the requisite authority certifications and permissions. 

How do I unblock Java security in Internet Explorer?

Step1. Open your Internet Explorer and click on the settings wheel icon. Then, click on “Compatibility View Settings”
Step2. Paste the java application or applet URL in the “Add this website” field. 
Step3. Click on “Add” and then on “Close” once done. Your Internet Explorer can now run your Java applet without any security error.

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